Shoe-sewing machine



T, E. MOLAUGHLIIN EMAIL SHOE SEWING MACHINE Filed March 6, 1924,

ch ill,

iuetau'onnin awn raisin-inn & lttc'lLAlIt-"l-HLIN, or onosn'rre.

nonenoon. sienna a lication filed rial-ea a, last. eel-n1 Rosalinda.

Uur invention relates to shoe sewing; machines and more especially to needle-:t'eed Iona chines ol the type used :tor sewing the shoe parts to the sole in stitch-down shoes, so called.

The objects cl our invention. to provide anew and useltul presser-loot and its coop crating needle plate or table whereby the sew-- in operation is facilitated by eliminating the operations of molding; and tacking, and the machine otherwise improved in the manner hereinaifiter fully set forth.

With these objects in view our invention comprises a presserdoot, the salient teature oil which is a knob-shaped or rounded downwardly-lnilging toe, having its inner or operative lace located forwardly of the needle and arranged to engage the uppen vauiip, box or counter, or whatever shoe part is to he sewed to the sole, and press the same against the last as the shoe is fed through the machine, totg ether with a too-operating table having a lat eral extension ollset from its supporting shank toward the needle and slightly inclined from its forward to its rearward end so as to hold the worlr tight to the shoe while tension is being put on the stitches said late *al er;- tension having a needle slot terminating in a groove at its rearward end and being entreinely narrow so as to enable the operator to tip the shoe during the sewing operation to a greater extent than is possible with tables of the prior art.

Cine embodiment of our invention which has proven efticient in practice is shown in the accompanying; drawings, but it is to be un derstood that various modifications may be made inv the particular torn). selected for illustration without departing iron). the scope out our invention, as set forth in the appended. claiin.

lo. the drawings liigure 1 is a side view or a presser-toot and it cooperating needle-plate or table;

Fig. 2 is a front view or said presser-tot and table;

Fig. 3 is a plan view of the presser toot;

Fig. l is a vertical. section of the table;

Fig. 5) is a plan view ol the table;

Fig. 6 is a rear elevation of the presser toot" lln the particular drawings selected to more tally illustrate my invention 10 represents a presser toot extending laterally and forwardly from its shank 11 which is secured to the presser-ifoot bar 12 by any suitable means herein-illustrated as a clamp integral with. said shank and torn'ied by splitting the socket 125 in the upper end thereof and pro viding said upper end with two lugs 14: with which the screw 15 has threaded engagement. The surface oi the bottom portion .16 oil the presser foot is substantially tlat and terrninates torwardly. i. e. in tront out the needle 17 mounted in the needle bar 18, in a rounded downwardly bulging toe 19, the inner or op erative :tace 20 or said too being curved from the point of the toe toward the last as the shoe is l ed through the machine and being therefore arranged to engage the upper or other shoe part which is to be sewed to the sole and press the same against the last during the sewing process.

By means of our improved presser foot the upper is held ti ght to the last by the clan'iping action oi? the inner face 20 ot the presser foot and the operations of: molding; and tacking as ordinarily performed are eliminated. Furthermore by means 01F our improvement it is possible to stitch bones and counters to the solo as well as the other shoe parts.

While any suitable needle-plate or table may be used with the presser toot above described, we ureter to employ the table shown in the lower part'ot Figs. 1 and 2 said table having a shank 21 secured to an upright bracket 22 and provided with. a lateral. ext-ear sion 23 oil set from said shank by being in.ount ed on the portion 2 lwhich is inclined toward the needle.

'llhe-lateral. extension 23 which constitutes the table proper is extremely narrow and is rounded at its outer edge as shown at 25. The table is provided with a noodle-slot 26 terminating at its rearward end in a groove 27 which is deep enough to accommodate the stitch. Preferably the table is inclined lroin :tront to rear as shown in Fig. 1 so as to hold the work tight while tension is being put on the stitches.

By making the table as narrow as the strength of the material will permit, and placing the needle-slot very near its outer edge, the operator is enabled to tip the shoe during the sewing operation to a greater en:- tent than. was heretofore possible, and tartherniore this permit-s stitching on a highshanlt, as well. as on a low-shank last.

By virtue olf our in'iproved presser foot and table it is possible to give a stitch-down shoe the appearance of a Goodyear welt shoe, and

its)

too

llOii l to to reduce the lateral extension of the sole and the out-turned portion of the upper Which is stitched thereto, thereby making a much neater looking stitch-down shoe than was possible by the machines of the prior art.

Having thus described an illustrative embodiment of our invention Without however limiting the same thereto, What We claim and desire to secure by Letters Patent is In a shoe sewing machine, a needle-plate or table having a shank and a lateral extension offset from said shank toward the needle and inclined rearwardly, said lateral extension having a longitudinally-extending needle slot passing vertically therethrough and a 15 horizontal thread groove formed in its upper surface, said thread groove intersecting said slot at the rearward end of the latter.

In testimony whereof, we have hercunlo subscribed our names this 7th (lay of Feb- 2o ruary, 1924.

THOMAS E. MGLAUGHLIN. MICHAEL C. MCLAUGHLIN. 

